There are a lot of Web Hosting Company. First you should choose Good and Reputable company, then you should Filter that to the Best. Here is the criteria to pick the best Web Hosting Company.
Back End/Network Operations Centers
This is where your accounts are actually housed. Sometimes a hosting provider will lease a part of a larger network and sometimes a hosting provider will develop their own. It is important to find out what kinds and how many fiber optic connections the NOC has. Make sure there is plenty of redundancy built in. Make sure the NOC is managed 24/7, even on holidays. Make sure there are fire suppression systems in place. Last but not least, ask about security. Make sure there are plenty of security measure in place.
Are they friendly? Do they answer their telephones? Are you put on hold and if so, for how long? If you have to leave a message, do they respond quickly? Does the rep on the other end know what they are talking about? Look at their network page and see if they have reports of down time or issue statements about problems.
How long does it take to get questions answered and tasks performed. Send a test support message and gauge the response times. See if they offer 800 toll free support.
Do they have a ticketing system that tracks performance times. This is key. If a hosting company has this, they are serious about improving internally.
Do they offer domain name sales? This can help to consolidate your vendor costs. See about getting a discount on domains if you are buying in bulk on a monthly basis.
Does the hosting provider offer branded support? As you grow, you will need to expand and see if the hosting provider will set you up with your own technician in your company name. Do they offer branded control panels and name servers? You need these tools to grow. Find out how easy it is to set these features up for your own account.
If you are growing at a rapid rate, ask for better pricing and discounts. It is ok to ask. It's even better when you get it and will
reduce your overhead.
Is that particular company in the red of black? Do they have a good cash flow? How fast is the host growing and can they handle the growth? What are they doing to grow and maintain the customer service level you expect. Are they near a buy out or planning